cryo-EM structure of Staphylococcus aureus(ATCC 29213) 70S ribosome in complex with MCX-190.
マップデータ
試料
複合体: Staphylococcus aureus(ATCC 29213) 70S ribosome in complex with MCX-190.
RNA: x 3種
タンパク質・ペプチド: x 47種
リガンド: x 2種
キーワード
antibiotic / ribosome / MLSBK-resistant
機能・相同性
機能・相同性情報
large ribosomal subunit / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / transferase activity / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit ...large ribosomal subunit / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / transferase activity / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / rRNA binding / negative regulation of translation / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / mRNA binding / RNA binding / zinc ion binding / cytoplasm / cytosol 類似検索 - 分子機能
Ribosomal protein L31 type B / Ribosomal protein L25, long-form / Ribosomal protein L25, beta domain / Ribosomal protein L25, C-terminal / Ribosomal protein TL5, C-terminal domain / : / Ribosomal protein S14, type Z / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily ...Ribosomal protein L31 type B / Ribosomal protein L25, long-form / Ribosomal protein L25, beta domain / Ribosomal protein L25, C-terminal / Ribosomal protein TL5, C-terminal domain / : / Ribosomal protein S14, type Z / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / : / Ribosomal protein L16 signature 1. / : / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L16, conserved site / Ribosomal protein L16 signature 2. / Ribosomal protein L17 signature. / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L28/L24 superfamily / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L32p, bacterial type / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein S12, bacterial-type / : / : / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L28 / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, non-mitochondrial / Ribosomal protein S14/S29 / Ribosomal protein L5, bacterial-type / Ribosomal protein L18, bacterial-type / Ribosomal protein L6, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein S3, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S19, bacterial-type / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein L20 signature. / Ribosomal protein S11, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S4, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal L28 family / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal protein L28/L24 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 superfamily / Ribosomal protein L30, bacterial-type / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein L16 / : / Ribosomal protein S16 / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / L28p-like / Ribosomal protein L20 / Ribosomal protein S15, bacterial-type / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L21 / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L19 / Ribosomal protein L19 superfamily / Ribosomal protein L19 / Ribosomal proteins 50S L24/mitochondrial 39S L24 / Ribosomal protein L17 / Ribosomal protein L17 superfamily 類似検索 - ドメイン・相同性
Small ribosomal subunit protein uS19 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS2 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein bL20 ...Small ribosomal subunit protein uS19 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS2 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL31B / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL33B / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS14B / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein bS18 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein bL21 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein uS15 / Large ribosomal subunit protein bL25 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein bL19 類似検索 - 構成要素
National Natural Science Foundation of China (NSFC)
32130063
中国
引用
ジャーナル: Cell Discov / 年: 2024 タイトル: Synthetic macrolides overcoming MLSK-resistant pathogens. 著者: Cong-Xuan Ma / Ye Li / Wen-Tian Liu / Yun Li / Fei Zhao / Xiao-Tian Lian / Jing Ding / Si-Meng Liu / Xie-Peng Liu / Bing-Zhi Fan / Li-Yong Liu / Feng Xue / Jian Li / Jue-Ru Zhang / Zhao Xue / ...著者: Cong-Xuan Ma / Ye Li / Wen-Tian Liu / Yun Li / Fei Zhao / Xiao-Tian Lian / Jing Ding / Si-Meng Liu / Xie-Peng Liu / Bing-Zhi Fan / Li-Yong Liu / Feng Xue / Jian Li / Jue-Ru Zhang / Zhao Xue / Xiao-Tong Pei / Jin-Zhong Lin / Jian-Hua Liang / 要旨: Conventional macrolide-lincosamide-streptogramin B-ketolide (MLSK) antibiotics are unable to counter the growing challenge of antibiotic resistance that is conferred by the constitutive methylation ...Conventional macrolide-lincosamide-streptogramin B-ketolide (MLSK) antibiotics are unable to counter the growing challenge of antibiotic resistance that is conferred by the constitutive methylation of rRNA base A2058 or its G2058 mutation, while the presence of unmodified A2058 is crucial for high selectivity of traditional MLSK in targeting pathogens over human cells. The absence of effective modes of action reinforces the prevailing belief that constitutively antibiotic-resistant Staphylococcus aureus remains impervious to existing macrolides including telithromycin. Here, we report the design and synthesis of a novel series of macrolides, featuring the strategic fusion of ketolide and quinolone moieties. Our effort led to the discovery of two potent compounds, MCX-219 and MCX-190, demonstrating enhanced antibacterial efficacy against a broad spectrum of formidable pathogens, including A2058-methylated Staphylococcus aureus, Streptococcus pneumoniae, Streptococcus pyogenes, and notably, the clinical Mycoplasma pneumoniae isolates harboring A2058G mutations which are implicated in the recent pneumonia outbreak in China. Mechanistic studies reveal that the modified quinolone moiety of MCX-190 establishes a distinctive secondary binding site within the nascent peptide exit tunnel. Structure-activity relationship analysis underscores the importance of this secondary binding, maintained by a sandwich-like π-π stacking interaction and a water-magnesium bridge, for effective engagement with A2058-methylated ribosomes rather than topoisomerases targeted by quinolone antibiotics. Our findings not only highlight MCX-219 and MCX-190 as promising candidates for next-generation MLSK antibiotics to combat antibiotic resistance, but also pave the way for the future rational design of the class of MLSK antibiotics, offering a strategic framework to overcome the challenges posed by escalating antibiotic resistance.